ejercicio_a_resolver

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Formulario</title>
</head>
<body>
    <div>
        <form action="/action_page.php" method="post">
            <label>Nombre</label><br>
            <input type="text" name="nombre" required maxlength="20"><br>

            <label>Email</label><br>
            <input type="email" name="email"><br>

            <label>País</label><br>
            <select name="pais" required>
                <option value="Argentina">Argentina</option>
                <option value="Bolivia">Bolivia</option>
                <option value="Brasil">Brasil</option>
                <option value="Paraguay">Paraguay</option>
                <option value="Uruguay">Uruguay</option>
            </select><br>

            <input type="submit" value="Enviar">
        </form>
    </div>
</body>
</html>